Gravel packer and service tool

Details Gravel packer and service tool Gravel packer and service tool

1990-02-12

1991-12-03

Dang, Hoang C.

Wells

Processes

Graveling or filter forming

166 51, 166120, 166124, 166125, 166217, 166317, E21B 4304

Patent

active

050692801

ABSTRACT:
A gravel packer and service tool combination for use in subterranean wells operates sequentially to lock and seal the packer in the well at a producing formation, release a mechanical connection between the packer and service tool, and open a passage through which gravel packing can be performed. Each operational step can be performed in primary and secondary fluid pressure-responsive modes of operation. The secondary mode of operation can be employed in the event the primary mode of operation fails.

REFERENCES:
patent: 4187906 (1980-02-01), Kovacs
patent: 4190107 (1980-02-01), Oden et al.
patent: 4345649 (1982-08-01), Baugh et al.
patent: 4441559 (1984-04-01), Evans et al.
patent: 4526229 (1985-07-01), Dickerson
patent: 4541486 (1985-09-01), Wetzel et al.
patent: 4660637 (1987-04-01), McGill et al.
patent: 4726419 (1988-02-01), Zunkel
patent: 4813486 (1989-03-01), Wyatt et al.
patent: 4858691 (1989-08-01), Ilfrey et al.
patent: 4862957 (1989-09-01), Scranton

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